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Re: Question: inequalities


  • To: mathgroup@smc.vnet.net
  • Subject: [mg11716] Re: Question: inequalities
  • From: phbrf@t-online.de (Peter Breitfeld)
  • Date: Thu, 26 Mar 1998 03:08:44 -0500
  • Organization: T-Online
  • References: <6eslt3$61t@smc.vnet.net>

Mike & Lizette Sullivan <mliz@remove_this_to_email_me.mindspring.com> schrieb:
: Hello everyone, I am using Mathematica 2.2:
:
:
: How do I get mathematica to give me a solution set for a inequality?
:
: For example, lets say I want to get mathematica to solve  Abs(2x+1)>5,
: where Abs means Absolute Value Of?
:
: Does mathematica have the capability of giving me a solution set like
: (-Infinity, -3) U (2, Infinity) which is the solution to this problem?


In 3.0 use the Add-On   Algebra`InequalitySolve`   then write

In[1]nequalitySolve[Abs[1+2 x]>5,x] Out[1]<-3 || x>2

Mathematica 2.2 cannot solve inequalities.

es grDFt
   - Peter
--
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